Removal of brazed metal sheets

Abstract

A process including local heating of a brazing point in order to remove an integrally brazed component from a structural part is provided. The brazing point joins a metal sheet in the interior of a cavity to a structural part. The process makes the removal of the metal sheet from the cavity much easier compared to the existing mechanical removal. A plasma source or an induction source may be used for heating the filler metal.

1 .- 10 . (canceled) 
     
     
         11 . A process for removing an integrally brazed component from a structural part, comprising:
 heating locally, a brazing point or a brazed seam between the component and the structural part,   wherein the brazed seam includes a length that is at least five times a width of the brazed seam.   
     
     
         12 . The process as claimed in  claim 11 , wherein the structural part is a turbine blade or vane. 
     
     
         13 . The process as claimed in  claim 11 , further comprising applying a force to the component during the heating of a filler metal which is the brazing point or brazed seam. 
     
     
         14 . The process as claimed in  claim 11 , wherein a plasma source is used for heating the filler metal. 
     
     
         15 . The process as claimed in  claim 11 , wherein an induction source is used for heating the filler metal. 
     
     
         16 . The process as claimed in  claim 11 , wherein the component is a metal sheet. 
     
     
         17 . The process as claimed in  claim 11 , wherein the component is fixed to the structural part at a plurality of points. 
     
     
         18 . The process as claimed in  claim 17 , wherein the component is welded to the structural part at the plurality of points. 
     
     
         19 . The process as claimed in  claim 11 , wherein only one brazed seam is present. 
     
     
         20 . The process as claimed in  claim 11 , wherein only the brazing point is present. 
     
     
         21 . The process as claimed in  claim 11 , wherein the brazing point or the brazed seam is heated locally in succession such that a bond between the component and the structural part is gradually released. 
     
     
         22 . The process as claimed in  claim 11 , wherein the structural part is a solid structural part. 
     
     
         23 . The process as claimed in  claim 22 , wherein the structural part is a solid hollow structural part.